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Home My WebLink AboutPRESENTATION 07/20/2009 Ellis CreekPROJECT NUMBER C500402 E LA)a F m -"q -ifi%=04 CONSTRUCTION MANAGEMENT May/June 2009 PRESENTATION July 20, 2009 PARTICIPANTS Owner: City of Petaluma Mike Ban 11 English Street Director Petaluma, CA 94952 (707) 778-4487 Margaret Orr Engineering Manager (707) 778-4589 Contractor: Kiewit Pacific Co. Clint Cole 5000 Marsh Drive Project Manager Concord, CA 94520 (925) 516-4600 Design Engineer: Carollo Engineers Tom Patten 2700 Ygnacio Valley Rd, Suite 300 Principal Walnut Creek, CA 94598 (925) 932-1710 Doug Wing Design Engineer (925) 299-6733 Environmental ESA Jim O'Toole Management: 8950 Cal Center Drive, Bldg 3, Suite 300 Project Engineer Sacramento, CA 95826 (707) 795-0900 Jennifer Garrison Environmental Manager (916) 564-4500 Programmer: ArcSine engineering Doug McHaney 970 Executive Way Project Manager Redding, CA 96002 (530) 222-7204 Steve Stewart Lead Programmer (530) 222-7204 Construction The Covello Group Bruce Presser Manager: 1660 Olympic Blvd, Suite 300 Principal Walnut Creek, CA 94596 (925) 933-2300 Ken Sinclair Construction Manager (925) 260-2943 Ed O'Brien Field Engineer (925) 382-1246 2 SUMMARY OF CONSTRUCTION STATUS KIM, frelffIX11 Base Contract Amount (Total Project) .................................... $ 110,329,000.00 Change Orders Executed .................................................. $ 4,590,388.00 Total Contract Cost ......................................................... $ 114,919,388.00 Contract Amount Earned ................................................... $ 114,766,857.00 Progress Payment May & June 2009 (excludes retention)........... $ 465,544.00 Previous Progress Payments (excludes retention) ...................... $ 102,606,646.00 Estimated Percent Complete ............................................................. 99% • Design Engineer: Carollo Engineers Authorized Budget (Total Project) ....................................... $ 4,499,075.00 Billings to Date .............................................................. $ 4,383,359.85 • Environmental Manager: ESA Authorized Budget (Total Project) ...................................... $ 1,434,830.00 Billings to Date ............................................................... $ 1,174,012.76 * ArcSine engineering Authorized Budget (Total Project) ....................................... $ 2,340,951.00 Billings to Date ............................................................... $ 2,232,073.25 • Construction Manager: The COVELLO GROUP, Inc. Authorized Budget (Total Project) ....................................... $ 10,231,509.00 Billings to Date ............................................................... $ 9,025,865.87 3 Schedule Notice to Proceed.................................................................................October 10, 2005 Base Contract Duration............................................................... 1278 consecutive days Original Completion Date.......................................................................... April 9, 2009 Time Extension Authorized................................................................................ 67 days Revised Duration........................................................................ 1345 consecutive days Revised Completion Date........................................................................ June 15, 2009 Weather Days (included in base duration).......................................................... 40 days Weather Days Expended (included in time expended) ....................................... 82 days TimeExpended.............................................................................................. 1345 Days PercentTime Expended......................................................................................... 100% 0 Construction Manager's Summary 1. Schedule The project is on schedule and substantially complete on time, June 15, 2009. 2. Work Progress Oxidation Ditches The facilities are in operation. Final Performance Testing was completed and final reports are being developed by the Contractor. Secondary Clarifiers The facilities are complete and in operation. Main Electrical Building The facility is complete and in operation. Headworks Facility The facilities are complete and in operation. Screw Press Building The facility is in operation. They system will be operated and optimized while the digester stabilizes in preparation for final performance testing. Methane Digester The facility is in operation. Acid Digester The facility is complete and in operation. Boiler Building The facility is complete and in operation. Thickener Building The facility is in operation. Biofilter The biofilters are complete and in operation. Operations and Maintenance Building The facility is complete and in operation. Filter Support This facility is complete and in operation. Tertiary Filters This facility is complete and in operation UV Disinfection Commissioning testing completed. Contractor is preparing the report to be submitted to the State. Recycled Water Pump Station This facility is complete and in operation. Wetlands Planting The plants are planted and growing. Site Landscaping Maintenance of the plantings around the site continued during the month. Polishing Wetlands Plantings in place and growing. All ponds except Pond 10 are in service. Plantings in Pond 10 require more time to grow before placing the pond in service. Existing Chlorine Contact Basin This facility is complete and in service. 3. Contract Changes Twenty one change orders were processed in May and ten change orders were processed in June with a total value of $152,531.00. Four hundred fifty change orders have been executed to date with a combined value of $4,590,388.00. The change orders greater than $10,000 executed during May and June are as follows: c0 No. Description Amount 422 Gate Modifications at Junction Box No. 2 $10,345.00 423 Purchase of Trees for West Access Road $10,307.00 430 Life Ring Cabinets $11,444.00 431 Concrete Conduit Protection at the West Access Road Entrance $10,050.00 438 Installation of Thermal Mass Flow Meters $10,013.00 439 RWPS 3W Supply Modifications $11,477.00 445 Cypress Drive Sidewalk and Landscape Modifications $14,093.00 The Contractor continues to negotiate change order pricing however, they have asked that all change orders be issued unilaterally. 4. Field Orders One new field order was prepared in May and three prepared in June. Two -hundred seventy nine field orders have been prepared for the project. Of those, fifty seven remain active with a total estimated value of $896,819.00. Active field orders for general changes greater than $10,000 are as follows: FO No. Description 106 CCB: Addition of Drain Vault Float and Clarification on Heat Trace Controller 113 HVAC Modifications at Filter Support, Thickener & Screw Press 134 CCB Wash down System 145 Existing CCB Piping Modifications 146 EC Purlin Shims & PVC Spacers at Standing Seam Room 164 Ops. Building: Control Room Wiremold Circuitry 173 Ops Bldg: Canopy Hood Single Speed Motors 6 Amount I $15,000.00 $10,000.00 $50,000.00 $30,000.00 $14,150.00 $16,198.00 $14,141.00 182 Additional Grading at RWSB — Build Up Petals 183 Waste Gas Flare Modifications 188 Tertiary Filters: Sample Feed to Turbidimeters 195 Mntnce Bldg: Addition of Smoke/Heat Detectors 200 CCB Paving/Grading Modifications 204 Entry Road Sidewalks 221 Motor Operated Gates in Fences 225 East Flood Protection Berm 227 24" Cleanout on 42" PWE Piping 234 Headworks Barscreen Enclosure Gas Monitoring 239 Light Pole and Enclosure Grounding 240 Motor Control Wiring Modifications 248 Replacement of Rotometers damaged due to freezing 251 Ops. Bldg.: HVAC Modifications to 19 -AC -01 in Electrical Room No. 1 269 Methane Digester Start up - Sludge Hauling and Gas Purge 271 Ponds B and C Berm Leaks 276 UV Commissioning Test Protocol 277 Methane Digester Mixing Pumps: Add Tee and ARV 278 Fencing at Polishing Wetlands Flow Splitter and Pump Station Total Active Field Orders < $10,000 $34,812.00 $17,809.00 $12,533.00 $18,705.00 $91,321.00 $51,102.00 $10,000.00 $54,500.00 $17,358.00 $20,000.00 $20,000.00 $20,000.00 $15,418.00 $10,541.00 $34,297.00 $136,652.00 $30,000.00 $10,000.00 $20,000.00 $122,282.00 5. Testing Remaining testing includes screw press performance testing, solids load out control valve testing, submittal and review of aerator performance testing, submittal and review of the UV commission testing, and submission of the UV commission testing to the State. 6. Anticipated Work for Next Month Commissioning and Process Testing of the UV system will be completed and the data will be submitted to the California Department of Public Health. Review of the aerator performance test report. Testing the solids load out control valves. Working on punch list. 7 FIELD ORDERS Total Cost of Total May -June Active Active Orders Field Orders Issued 279 4 57 $896,819.00 Total May -June Value of Change Orders Executed in May -June 31 $152,531.00 Value of Change Orders Executed to Date 450 $4,590,388.00 Percent to Date of Original Contract 4.16% WEATHER RELATED DELAYS Days Base Contract Allowance 40 Weather Related Days in May -June 0 Weather Related Days to Date 82 8 Received To Date May -June Returned Pending First Time Shop Drawing Submittals (excludes O&M Manuals) 911 0 911 0 Request for Information 1564 1 1564 0 C. M. Request for Information 270 0 270 0 FIELD ORDERS Total Cost of Total May -June Active Active Orders Field Orders Issued 279 4 57 $896,819.00 Total May -June Value of Change Orders Executed in May -June 31 $152,531.00 Value of Change Orders Executed to Date 450 $4,590,388.00 Percent to Date of Original Contract 4.16% WEATHER RELATED DELAYS Days Base Contract Allowance 40 Weather Related Days in May -June 0 Weather Related Days to Date 82 8 Final Cleanup and Insulation of Piping Painting Touch Continues Throughout the Site dii Polishing Ponds Planted and Ready for Service 10 Ellis Creek Water Recycling Facility CONTRACT CHANGE ORDER TRACKING SHEET 11 Time cc0 # Description Amount (Days) 1 Time extension for additional soil sampling 0.00 8 2 Lime treatment at Ox Ditch & Secondary Clarifiers 125,000.00 3 Board up Farmhouse 3,385.00 4 Hay Stacker Relocation 493.00 5 Terrorism Insurance and Increased Earthwork 0.00 6 Meter in Temporary Recycled Water Pipeline 3,023.00 7 Temporary Power for Pond 1 Aerators 1,270.00 8 Pavement Repair on Cypress and McDowell 419,681.00 9 Conduit Encasement Coloring Agent 10 Delayed Caltrans Encroachment Permit 16,723.00 11 Trench Cut -Off Walls 12 Horizontal Aerators Extended Warranty Testing 0.00 13 Deletion of Prime Coat under AC Pavement 14 Replace PVC Sched. 40 with EB 20 Conduit in DB 15 Delete Lakeville Highway Access 40,000.00 16 Contract Time Extension for Weather Days 03-04106 0.00 38 17 Change Valve Types 0.00 18 Replace EMT conduits by MC cable @ O&M Bldg 19 Inverter Duty Motors at Oxidation Ditch Aerators 16,466.00 20 Aerated Lagoon and Pond 1 Modifications Milestone 0.00 21 Additional Striping and Loops on McDowell 13,747.00 22 Catch Basins Invert Changes 23 Oxidation Ditch Sump Modifications 24 Change Buried Conduits PVC GRS to PVC Sch. 40 25 Temporary Power to Existing Aerators 4 and 7 7,956.00 26 O&M Bldg: Ceiling & Wall Heights Rms 4,287.00 27 Provide Portable Generator Pads at Ponds 2,554.00 28 FS Bldg: Extend Conduit Stub -ups Beyond Ductbank 9,190.00 29 Headworks: Handrail Extension to Complete Deck 1,254.00 30 Pond 4 Aerator Temp Power 883.00 31 Aerated Lagoon: Reconnecting of Aerator No. 2 537.00 32 Unknown Utility at Pond 1 North Side 855.00 33 Ductbank Encasement with Reinforcing 24,884.00 34 Gun Safe for Storage of Bid Documents 2,410.00 35 S&C Pad Mounted Switch Additions 75,200.00 Time cc0 # Description Amount (Days) 11 36 Permanent Power Supply for Pond 1 Aerators 98,000.00 37 Temporary Fire Hose 851.00 38 Change material for Temporary Debris Collector 39 Chemical Tank Pads @ Filter Support Bldg 4,425.00 40 Disconnect Aerator No. 2 & reconnect Pond 4 Aerators 607.00 41 Delete Steel Steps in Manholes 42 Add 4" Butterfly Valve in Acid Digester 1,189.00 43 Delete Pre-Action Fire System @ Main Elect. Bldg _ ! 44 Headworks Influent Box Modifications 3,000.00 45 Transformer Pad at Restroom 9,498.00 46 Addition of Construction Joint at Oxidation Ditch Slabs 23,505.00 47 Change Conduits from PVC Rigid Steel to PVC Sch. 40 48 Reader Board & Geogrid placement @ Cypress/McDowell 6,000.00 49 Plant Control System PLC Architecture 50 Grit Pump Room Sump Pump Modification 1,326.00 51 PLC Enclosure Size for PLCs 2, 3 and 8 5,446.00 52 Additional Time Switches at O&M Bldg. 2,722.00 53 Extension for Pond 1 Aerators Milestone Date 0.00 54 Levee Repair at Berm Existing Ponds 8 & 9 289,279.00 55 Operations Bldg. Maintenance Window 1,022.00 56 In-Plant Pump Station Wall Penetration Details 2,807.00 57 Alignment of 42" RSG line to Headworks 4,208.00 58 Revision of Structural Joints at Headworks Facility 5,628.00 59 Pond 9 & 10 Levee Pothole 1,400.00 60 Add pipe for Future Pump Can @ RWPS 6,316.00 61 Home Inspection of Farm House 746.00 62 Alignment of 42" PWE line to Cell D Transfer Structure 8,171.00 63 Delete Locks on Motor Operated Overhead Coiling Doors 64 Dewatering of Pond 8 and Mitigated Wetland 3,488.00 65 UV System Programming 2,777.00 66 Septic Tank Removal at Farm House 739.00 67 Changes to Slide and Sluice Gates 11,177.00 68 PLC System Material for C Street Pump Station 14,915.00 69 PLC - 10 Analog Input Module 1,873.00 70 Change Storm Drain Pipe from RCP to CHDPE 71 Deletion of CMU Coating on non-occupied structures 72 Existing Utilities at West Access Road Entrance 8,543.00 73 Change Handrail for Polishing Wetlands Structures 6,965.00 74 Change SDR for HDPE Pipe Lines c.^ 75 Addition of waterstop in wall @ Filter Support Bldg. 1,330.00 76 Delete waterstop & starter walls @ HW, RAS PS, UV Time CCO # Description Amount (Days) 12 77 Re-Power Pond Aerators, Reconnect Aerated Lagoon 3,718.00 78 Contract Time extension for Weather Days 10/2006 0.00 1 79 Deletion of waterstop and starter walls at Tertiary Filters u. 80 Add waterstop at Grit Pump Area of Headworks Structure 6,167.00 81 Fuel Tank Removal at Farmhouse 2,972.00 82 Revised Anchorage for Oxidation Ditch Aerators 40,941.00 83 Deletion of Integrated System Shop Testing (ISST) 0.00 84 Additional Dowels at Maintenance Bldg. 914.00 85 Replace Fuses at MCC 3A after PG&E power spike 1,706.00 86 Remove and replace disconnect switch P. Aerated Laqoon 2,919.00 87 Lower Invert Elevation for 42" RSG Line 18,726.00 88 Addition of Roof Hatch @ Main Electrical Bldg. 3,195.00 89 Filter Support Bldg: NG Connections and Valving 1,361.00 90 Chain Link Fence addition @ Farmhouse 725.00 91 Repair Irrigation Lines @ Kaiser 1,186.00 92 Demo of Spillway at Pond 10 12,109.00 93 Curb and Grading @ Filter Support Bldg 0.00 94 Irrigation System: Concrete Valve Boxes 2,393.00 95 Contract time extension for Weather Days 11/06 0.00 5 96 Mitigation Wetlands Drain 4,370.00 97 Additional vinyl sheets for Levee Repair @ berm Pond 8 & 9 5,498.00 98 Shoring @ Naval Trail 21,271.00 99 Extra excavation @ W Access Rd. for 12" 1W line 8,008.00 100 Replace SBS line @ Chlorine Contact Basin 5,936.00 101 Brush clearing @ Farm House 5,209.00 102 Relocate standby Generator @ CCB 2,005.00 103 Drywall Furring @ Elect Rm #2 in O&M Bldg. 1,630.00 104 Equipment for MCC-3 retrofit 25,360.00 105 Perimeter lighting switching @ Main Elec. Bldg. 1,795.00 106 Wiring for Time-Off Relay @ Wetlands Elec Bldg. 2,282.00 107 Changes to SCADA interface Boiler & PLC 3 3,549.00 108 Disposal of existing MCC 3 transformer 2,141.00 109 Contract time extension for Weather Days 12/06 0.00 7 110 Tree removal @ W Access Rd. 1,419.00 111 Deepening Pull Boxes @ Ox Ditch MCC Bldg. 11,540.00 112 Rebar modification @ Wetlands Pump St Deck Beam 2,187.00 113 Electrical Equipment Pads 9,018.00 114 Delete Catch Basins at W Access Rd. 1,746.00 115 Naval Bldg Lookout Area 3,000.00 116 Changes to TWE and PWE lines 0.00 117 Polishing Wetlands FSS: Add Hand Switch 3,444.00 Time cC0 # Description Amount (Days) 13 118 Engineering of Anchorage @ Oxidation Ditch Aerators 119 Replace Oxygen Probes @ Aerated Lagoon/Pond 1 13,411.00 120 Change Piping Material for Deionized Water Service 0.00 121 Filter Support Bldg: Relocation of 1W Line 4,568.00 122 Security Lighting at Farmhouse 1,200.00 123 Disposal of Asbestos Containing Pipe 2,087.00 124 Investigation and Disposal of FAA Building 20,512.00 125 Conduit addition @ Boiler Bldg. 15,780.00 126 O&M Bldg: Exhaust fans power supply & controls 34,440.00 127 Addition of Disconnect Switches @ Headworks 25,143.00 128 Level Transmitter addition @ Headworks 23,058.00 129 Contract Time extension Weather Days 01-02/07 7 130 Subgrade Improve & Pipe Encasement @ W Access Rd. 12,128.00 131 Additional Conduit for Fuel Leak Detection 2,714.00 132 HVAC Enclosure Modifications @ Ops Bldg. 8,014.00 133 Wiring of Spare I/Os 45,713.00 134 PLC Enclosure Size for PLC 5 7,823.00 135 Partial Payment for PLC Enclosures 0.00 136 Trench Backfill with Native Material 137 UV Bldg Top Slab Modifications 14,000.00 138 Ops Bldg: HVAC Electrical & Mechanical Modifications 2,854.00 139 24" Pumped Storm Drain Line Coverage 30,000.00 140 Metal Siding @ Main Electrical Bldg. 5,071.00 141 Contract Time Extension for Weather Days April 2007 1 142 Ops: Relocate HVAC duct transition @ Locker Rm Ceiling 878.00 143 Use of Native Material for backfill @ North & Middle Cluster 144 Recycled Water Storage Basin Size Increase 220,867.00 145 Outlet conduit replacement @ Existing CCB 1,260.00 146 Modify Rebar Expansion Joints @ Thickener Bldg 1,610.00 147 Modify Grating Seat @ Headworks Beam B-13 1,737.00 148 Added Space Heater for PLC 8 - RIO 1 1,803.00 149 Additional G2 Light Fixture @ Ops Bldg Lobby 2,013.00 150 Connection Grounding Bldg rebar @ MCC HW Bldg. 974.00 151 Relocate supply line fire riser @ maintenance Bldg. 3,027.00 152 Pipe material for 36" mixed liquor line @ 2ndary Clarifiers 14,271.00 153 Modifications HVAC Pads 9,562.00 154 Mod per PG&E Requiremnts to Main Power Supply 19,886.00 155 Addition of Wall Sleeves at Thickener Building 847.00 156 Reduce Deck Slab Openings @ Wetlands Pump Station 782.00 157 Wall Supports for Pony Wall at Laboratory 2,162.00 158 Concrete Encase HCS pipeline @ Headworks Structure 2,393.00 Time CCO # Description Amount (Days) 14 159 Convert Conference Rm into 2 Offices @ Ops Bldg. 8,351.00 160 Concrete Backfill around Screw Press Equipment Trench 1,588.00 161 Expansion Joint Rebar @ Headworks Grid Line 10 1,151.00 162 Standby Generator Connection @ Wetlands PS 13,527.00 163 Deletion of Rotameters @ Tertiary Filters 164 Blockouts for Ox Ditch Aerator Anchorage 1,022.00 165 Concrete Encase SD pipe under HWE pipeline @ HW 1,657.00 166 Temporary Power for Transformer @ Aerated Lagoon 28,343.00 167 Rebar @ Headworks Manual Bar Screen Embed 756.00 168 Subgrade Improvement for Wetlands PS Apron Slab 11,799.00 169 Screw Press Bldg Skylight Size Change 3,465.00 170 Additional 1/0 from Power Panel to PLC -9 2,887.00 171 Standby pump @ existing CCB during work @ Pond 10 44,000.00 172 Billing for Potable Water Usage on site through 4/4/07 1,552.00 173 Upgrade starters for Ox Ditch Aerator Motors 78,373.00 174 Blind flanges for future effluent line @ Aerated Lagoon 11,709.00 175 Remove rebar @ Ox Ditch Aerator Motor Block-outs 3,000.00 176 Modification of controls for Tertiary Effluent Bypass Valves 177 Communication between PLC -8 & Thickener PLC 2,032.00 178 Automated 1W Valve @ Recycled Water Storage Basin 46,267.00 179 Modification to HW Bar Screen Channels 6,130.00 180 Relocate Fire Pump Can @ RWPS 4,613.00 181 Add Effluent Conductivity Probe @ JB No. 2 9,680.00 182 Revise DB Routing @ Ferrous Chloride Area 2,463.00 183 Ventilation Alarms @ Boiler Bldg & Thickener Bldg 20,526.00 184 Anti Graffiti Coating @ O&M Bldg and Sound Wall 28,736.00 185 Deletion of Louvers @ HW Bar Screen Enclosures 186 Deletion of Combination Smoke Fire Dampers 187 Fire Rating Janitor Closet Door @ Ops 1,841.00 188 Brush clearing @ Farm House fire season 2007 3,186.00 189 Ops: CMU alignment & wall cap @ HVAC enclosure 1,826.00 190 Ops: addition acoustical ceiling P. electrical rm #1 3,125.00 191 Ops: framing details for Lobby 2,163.00 192 RWPS: modified floor drainage 15,107.00 193 Ops: beam seats in CMU wall pockets 10,067.00 194 Recycled Water Storage Basin Berm Modifications +' 195 Double Containment System Modifications 90,172.00 196 Site Security Lighting Estimation Cost 10,364.00 197 Grading @ Mitigation Wetlands & RWSB 27,012.00 198 PG&E power connection @ W Access Rd. 55,335.00 199 UV Disinfection Light Pole Mounting Detail 7,027.00 Time ccO # Description Amount (Days) 15 200 Ox Ditch Light Pole Mounting Detail 8,852.00 201 Existing CCB: power to New Chemical Metering Pump 8,588.00 202 Screw Press grating @ Flocculation Tank Opening 1,969.00 203 Anchorage of Diffuser Pipe Ponds 9 & 10 32,659.00 204 Acid Digester changed detail wall penetrations 4,286.00 205 Existing LPN panel in chemical bldg. 2,576.00 206 Revised Details @ RWSB 20,881.00 207 Ops: Deletion of Closet in Control Room .:. 208 Ultrasonic level sensor mount @ Headworks 1,208.00 209 Mitigation Wetlands Drain — Permanent Installation 75,048.00 210 Ops Bldg: Plumbing Dwgs 29,571.00 211 Ops: Deletion of decking @ Mechanical Chases 1,719.00 212 Headworks: channel floor rebar modification 1,696.00 213 Ops: Furring Men's Restroom Urinal Wall 740.00 214 Informational Kiosks: Addition of 2" PVC 40 Pipe Sleeve 2,560.00 215 Screw Press: Modifications to Underslab Piping 2,607.00 216 Below Grading Coatings 72,507.00 217 Aerated Lagoon: Unknow utility @ 20" URW Alignment 5,225.00 218 Ops Bldg: Additional Window Clips 3,194.00 219 Silt Fence Repair 1,209.00 220 Ops Bldg: control rm. Backing & wood blocking 2,185.00 221 Ops Bldg: Modifying Welding Studs to 1/8" Tubing 5,293.00 222 Pond 10 Apron Slab: Over Ex, Fabric, and Rock 3,870.00 223 Addition of Solenoid Valve @ Recycled Water Surge Tank 5,095.00 224 Thickening Walls @ Ox Ditch Aerator Shafts 11,286.00 225 Relocate Receptacles @ Biofilter Mechanical Pad 3,286.00 226 Equipment Pad Modifications @ Screw Press 5,130.00 227 Footing Elevation @ Filter Support Bldg. Tank Farm 2,098.00 228 Relocation of Cell D Transfer Structure 5,162.00 229 Pipe Elevations & Drainage Swale @ Polishing Wetlands 1,938.00 230 Farm House: Plywood Cover @ Back Entry 756.00 231 Methane Digester construction joint location & piping 1,057.00 232 Ops Bldg: Icemaker Legs 893.00 233 Acid Digester: Overflow Piping Modifications 1,727.00 234 West Cluster: Sitework & Grading Change 277.00 235 Ops Bldg: Future access control conduit stub-outs 1,720.00 236 Ops Bldg: Interior lights & furring strips 2,292.00 237 Potholing & Excavation existing utilities @ CCB 42,606.00 238 Replace Farmhouse Roof 34,194.00 239 SCADA: TWAS sump level set points 1,682.00 240 CCB: Relocation of Ammonia Tank 17,176.00 Time CCO # Description Amount (Days) 16 241 Add wire way in PLC 6 @ Existing Chemical Storage Bldg. 1,775.00 242 Replace Landscaping on Kaiser Property 2,690.00 243 Electrical Modifications @ UV Bldg. 47,188.00 244 Headworks: Rebar Detail @ Channel Wall Ends 1,625.00 245 Rebar @ Screw Press Bldg. Slab Extension 1,625.00 246 Tertiary Filter: 12 Inch Inlet Line 17,248.00 247 Ops: Modifications to Fume Hoods ; 248 Ops: Addition of Compressed Air @ Laboratory 22,641.00 249 Ops: Training Room Modifications 8,494.00 250 Emergency Repair Kit Deletion 251 Increase Cover Over 14 inch Foul Air Line 1,972.00 252 Headworks: Epoxy Coat Rebar @ Block-outs 20,579.00 253 Relocation of Mezzanine Column @ Screw Press 3,225.00 254 Additional Rebar @ Oxidation Ditch 1,348.00 255 Pipe Class Acid Gas & Methane Gas Pipe 256 Modifications to the Potable Water System 105,856.00 257 Thickening Bldg piping modifications 764.00 258 Catch Basin grating modification @ W Access Rd. culvert 4,950.00 259 Headworks FRP grating support @ Gate location 2,219.00 260 Digested Sludge Storage Tank: Piping Modifications 4,828.00 261 Modifications to Analyzer Enclosures 9,315.00 262 Additional Conduits & Wires Miscellaneous Areas 41,620.00 263 Planting modification @ West Access Rd. 2,328.00 264 Install Clapper Rail Trail Gate 2,687.00 265 Amphitheater seating next to Polishing Wetland Cell D 29,577.00 266 Ferrous Chloride- revised electrical & pump pad 24,552.00 267 Chip Down Top of Wall @ Filter Support 3,411.00 268 Conduits for Future Mixer @ CCB 11,320.00 269 Modifications for Interfacing between PLC 6 and PLC 11 5,800.00 270 Headworks Deck Slab Falsework 26,026.00 271 Dewatering of Pond 8 20,157.00 272 Pressure Gauges @ Wetlands Pump Station 4,110.00 273 Irrigation Changes @ Point of Connection 24,050.00 274 Filter Support: 4" chemical drain elevation 872.00 275 Unknown Utilities @ Site Entrance 4,205.00 276 Mitigated Wetland Planting 277 Changes & Additions to 3W System @ Ox Ditches 34,716.00 278 Garbage Bin Structure 25,644.00 279 Relocate Veolia Materials @ CCB 788.00 280 Wetlands PS Portable Eyewash Station 5,217.00 281 Temporary Irrigation Connection to Schollenberger 2,255.00 Time ccO # Description Amount (Days) 17 282 Partial Deletion of Planting @ Polishing Wetlands 283 Change NEMA Rating for Pull Boxes @ Ox Ditches 284 Delete Trail Material W Polishing Wetland Cell D 285 Equipment Pad Modifications @ CCB Bldg. 26,412.00 286 Parapet Detail @ Ops Bldg Lobby 18,746.00 287 Relocate Potable Water Riser @ 1W Pump Station 3,299.00 288 Dewatering Pond 7 for TWIS 14,419.00 289 Additional work for Farmhouse Roof Replacement 41,819.00 290 Material for Clay Liner in RWSB 13,820.00 291 Ops Bldg 1 hr Fire Rating 40,885.00 292 Maintenance Bldg: 2hr Fire Rating 1,282.00 293 Relocate Tie-In to Potable Water Sys @ Cypress Dr. 8,042.00 294 Changes to Gates & Operators @ W Access Rd. 295 Ellis Creek Clean Up 8,395.00 296 Analog Input Module for PLC 11 2,766.00 297 Addition of the Polishing Wetlands Pump Station 415,000.00 298 Natural Gas Connection & Metering Pad 18,435.00 299 Additional Digital Input Points PLC 9 2,335.00 300 Weather Monitoring Station 24,976.00 301 Modifications for future Polishing Wetlands Pump Station 16,899.00 302 Addition of Geofabric @ East Access Rd. Ponds 8,740.00 303 Outlet Cutouts in Backsplash @ Ops Laboratory 1,908.00 304 Ops Bldg: Exhaust Fan Drainlines 7,662.00 305 PVC pipe for Plant Drain Piping 306 Drainage Swale @ W Access Rd. 307 UV Stair Grating Changes 308 UV Channel Blockouts for Wireways 309 CCB: Welding of 42" Pipe Connections 27,142.00 310 Trail Connection @ Schollenberger Park 13,167.00 311 Waste Gas Flare Pedestal 2,366.00 312 Relocation of cabinets in Ops Bldg. 753.00 313 Support for folding Partition in Ops Bldg. 830.00 314 Deepen Fuel Sump @ Generator 3,855.00 315 Operation Bldg: Fire Sprinkler Riser 25,728.00 316 Glass Lined Ductile Iron Pipe 97,613.00 317 Wetlands PS Mixer Mounting Bracket 1,798.00 318 Uninterruptible Power Supply @ Ops Bldg. 24,754.00 319 Clarifier 1 & 2 Light Post Mounting 3,060.00 320 Transformer Relocation @ Existing CCB 6,187.00 321 Ops Bldg: Mudroom Skylight Framing 5,192.00 322 Wetlands Pump Station Interim Milestone 0.00 Time CCO # Description Amount (Days) 18 323 Analyzer Enclosure @ Outfall Structure 11,080.00 324 Additional Grating @ Biofilter Damper Boxes 2,747.00 325 Additional Valves for Hydronic System 762.00 326 Modifications @ Flow Control Structure C-2 r `: 327 Change Manhole & Catch Basin Elevation @ South Cluster 1,923.00 328 Modifications to the Existing Outfall Structure 12,254.00 329 Anti Graffiti Coating @ Garbage Bin Structure 2,389.00 330 Instrumentation and Control Modifications @ Existing Plant 58,658.00 331 Miscellaneous Extra Work @ Junction Box No. 2 49,264.00 332 Miscellaneous Extra Work @ Existing CCB 12,655.00 333 Paint Flashings and install Spark Arrestor @ Farmhouse 2,860.00 334 Temperature Detection for Recycled Water Pumps 19,598.00 335 Raise Top of Electrical Pull Box @ Headworks 3,391.00 336 Modifications to Biosolids Load -out @ Screw Press Bldg. 266,077.00 337 Rerouting of Electrical Conduits @ Headworks Deck 46,510.00 338 Miscellaneous Instrumentation Modifications 5,366.00 339 Reverse Service Generator Plug 4,699.00 340 Submersible Sump Pump Control Panels 2,445.00 341 Flow Meter Transmitters @ WPS 1,597.00 342 Additional Fence & Gate @ Existing Farmhouse 5,299.00 343 Install pressure gauge @ Tertiary Filter Hypochlorite panel 1,684.00 344 Widen Sidewalk @ Filter Support Bldg. 821.00 345 Anti Graffiti Coating @ W Access Rd. Public Restroom 3,920.00 346 Screw Press Parapet Wall Height 2,658.00 347 Handrail Installation @ Ox Ditch Weir Gates 7,798.00 348 Bond and Insurance Over -Billing;:. r 349 Drains for AC Unit & Backflow Preventers @ Ops Bldg 2,185.00 350 Delete wires @ Headworks & add wires @ PWFSS 0.00 351 Added Sample & Drain Lines @ JB 2 4,127.00 352 Additional Blackout Shades @ Ops Bldg. 885.00 353 Relocation of Drain Lines @ Biosolids Load -out Slab 10,201.00 354 Deletetion of Vinyl Coating- chemical pump pad @ CCB 355 Ferrous Chloride Line Encasement under Equip Pad 2,608.00 356 Power Supply to Current Tranducers @ Ox Ditches 3,999.00 357 Level Switches @ RWPS 5,081.00 358 Contract Milestones O&M Bldg Occupancy / SCADA Readiness 0.00 359 22" Foul Air Pipe Encasement 11,291.00 360 Shoring @ JB 2 48,500.00 361 Dewatering @ JB 2 28,000.00 362 Analyzer Changes & Minor Changes to Instrument Index 23,495.00 363 Sprinkler Repair at West Entrance Road 1,585.00 Time ccO # Description Amount (Days) 19 364 Modification of Light Pole Bases @ Tertiary Filters 693.00 365 Stair Landing @ Tertiary Pump Station 1,001.00 366 Acid Equipment Pad: Ferroud Chloride Line 1,207.00 367 RWPS Hydropneumatic Tank Mechanical 1,543.00 368 Change Diffuser Pipe Supports @ UV 2,448.00 369 Fire Alram System Modifications 370 Site Keying of Permanent Cores 2,745.00 371 Sediment Trap Modifications 12,478.00 372 Additional supports for 24" Mixed Liquor Return Pipes 7,876.00 373 Modification of 1W Fill Line @ RWSB 2,357.00 374 Deletion of Safety Ropes and Floaters @ Ox Ditches 375 Changed Material for Sludge Pressure Relief Lines 376 Electrical and SCADA changes @ Digester Area 7,716.00 377 Addition of Bases for Bollard Lights @ O&M Bldg. 9,176.00 378 Sidewalk Elevation Changes @ MCC 9 3,518.00 379 Reroute conduits @ Filter Support Tank Farm 2,870.00 380 Repair Pipe between Ponds 2 & 3 4,542.00 381 Reroute conduits/wires for Gas Heater Thermostats 4,436.00 382 Changes to Concrete Drain Ditches @ WAR 7,286.00 383 Conduit addition @ TWIS 3,053.00 384 Extend slab @ Polishing Wetland Flow Split Structure 2,661.00 385 Change Transformer Pad @ W Access Rd. Restroom 2,096.00 386 Sanitary Sewer Manhole Elevation @ WAR 6,593.00 387 HCS Injection Mounting Plate at the RWPS 998.00 388 MEB Exterior Fixture Mounting 5,301.00 389 RWPS Truck Fill Station 11,231.00 390 House Keeping Pads in Filter Support Building 5,812.00 391 West Access Road Sidewalk Removal 11,051.00 392 Water Meter Box Modifications - Location and Valves 11,349.00 393 Tertiary Filter HCS Diffusers 9,168.00 394 Conduit for Future Alum Tank at Filter Support Building 1,295.00 395 2008 Brush Clearing at Farm House and Hay Stacker Disposal 3,887.00 396 Raise Pull Box Lid @ Filter Support 3,694.00 397 Fire Pump Instrumentation Modifications 9,534.00 398 Pipe Elevations @ Sludge Storage Tank Equipment Pad 979.00 399 Additional Pressure Regulator & Gauge @ Outfall Bldg. 2,185.00 400 Raise Pull Box Lid @ Storm Water Pump Station 3,301.00 401 Modifications to FBA Piping @ Filter Support Bldg. 2,232.00 402 Modified Handrail Anchorage @ Headworks Structure 10,012.00 403 Biosolids Loadout Slab Modifications @ Screw Press 28,218.00 404 Raise Valve Box Lid @ Existing CCB 2,790.00 Time CCO # Description Amount (Days) 20 405 HCS Panel Modifications 4,632.00 406 Addition of Natural Gas Regulators @ Process Bldg. 4,050.00 407 Project Completion Time Extension 0.00 15 408 Revised Amphitheater Grading 16,231.00 409 Ops Bldg Electrical Room Heating and Cooling 6,439.00 410 Sand Trap Addition @ Tertiary Filters 1,762.00 411 Overflow Weir Modifications @ Headworks Structure 9,038.00 412 Air Gap Tank Coating @ 1W/2W Pump Station 9,970.00 413 Modify Strainer Drains & Check Valve @ RWPS 2,995.00 414 Exit Routing Signage @ Ops & Maintnce Bldg 1,861.00 415 Irrigation Connection at Existing Ponds 10,764.00 416 Methane Gas Pipe change @ Digested Sludge Storage Tank 3,724.00 417 Piping modifications in Analyzer Enclosures 6,916.00 418 Pressure Relief Vent change @ Wetlands Pump Station 4,320.00 419 Additional Drain Groove @ the Ferrous Chloride Area 1,607.00 420 Screw Press FRP Ducts and Crane Rail Conflict 2,852.00 421 Gravity Belt Thickener Reprogramming 4,705.00 422 Gate Modifications at Junction Box No. 2 10,345.00 423 Purchase of Trees for West Access Road 10,307.00 424 Change Level Ball Floats in Chemical Containment Areas 3,348.00 425 Modifications to Influent Sampling at the Headworks 2,883.00 426 Power Supply for Local Control Panel in Screw Press Buildinq 1,357.00 427 Change Light Pole Height at UV Structure Bridge Crane 657.00 428 Reroute 3W Line at Boiler Building 2,426.00 429 Rewire and Retag Valves at the Tertiary Effluent Meter Vault 616.00 430 Life Ring Cabinets 11,444.00 431 Concrete Conduit Protection at the West Access Road Entrance 10,050.00 432 Pipe Modifications at Recycled Water Pump Station 3,462.00 433 Gravity Belt Thickener Spray Water Source Modification 769.00 434 Sidewalk Modifications at the Ferrous Chloride Area 752.00 435 Install Check Valve at Fire Pump Enclosure 1,483.00 436 Grit Classifer Speed Switch Power 3,679.00 437 Maintenance Bldg: Fire Rating for Door #1951 4,235.00 438 Installation of Thermal Mass Flow Meters 10,013.00 439 RWPS 3W Supply Modifications 11,477.00 440 Power to Rollup Door @ the MEB Bldg. 5,973.00 441 Ops & Maintenance Bldg. Green Roof Irrigation 5,537.00 442 Ops Bldg. Server Rack Size Change 8,045.00 443 Clarifier Scum Pump Wire Sizing 5,078.00 444 UV Disinfection UPS Enclosure Location Change 3,127.00 445 Cypress Drive Sidewalk and Landscape Modifications 14,093.00 Time CCO # Description Amount (Days) 21 446 Reduction in Spare Filter Sand ..� ` 447 Screw Press Bldg. Two Speed Fan Conductors 2,684.00 448 Barscreen Programming Change 7,943.00 449 Ops Bldg. Lab Epoxy Countertop Modifications 2,749.00 450 RWPS Control Schematic Modifications 1,374.00 CHANGE ORDER TOTAL: 4,590,388.00 82 Contract Amount: 110,329,000.00 1278 Percent Change Orders: 4.16% Totals: 114,919,388.00 1360 Total Additive Change Orders Percentage of Contract Amount 5.07% Total Credit Change Orders Percentage of Contract Amount 0.91% Contract Substantial Completion Date 4/9/09 Current Substantial Completion Date 6/15/09 22 nrlu R"'I EMY Fady Tnt�of "'0' zMe 200a 5 0 X 0 jrd, J J A N D M J F A M MM M N D M J J A S 0, , D J F A J J A S 0 J. F , 4 m• i "i Dur Mr Stork rIH'jh pomp Ftmd I A M P , . . r"A VC� *WU,:IIUL tO P 40CLLU T 7 F. On 7 -9 K7' ?�I P[WHUST5 rOI;RFCM%'F, MI !W M VS AR L V CC C LPAPC Y S.UnSTANTAL COMPUTIGN jf7.PqMACT - Vl',NIClb "SOLITH "M- C04NEEMON 77 SCHOLLEASERGFF. 13°T,*5 # HORIZFJV I AL TYM EAUSH AERATOR LAUMIN 5 7REATMENTYJETLAND CrjWSTPU4TIGN4PCN:I 91 3-29-5bw WC17 OIL, 5L;A4A 2'AQ PRICE' MCPERATIUMAL TESTINC4 N.X RHP, r. 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